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peterl



Member Since: 08 Jan 2009
Location: Pembrokeshire
Posts: 285

1987 Defender 90 300 Tdi HT Epsom Green
R380 tdi gearbox

Is this box the same for a tdi and V8 or are there marked differences,
Wanting to replace a 300tdi with V8 and keep box, is this possible

Post #676510 6th Jan 2018 11:31pm
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MJN110



Member Since: 18 May 2015
Location: North Yorkshire
Posts: 377

United Kingdom 2016 Defender 90 Puma 2.2 Landmark LE Montalcino Red

My understanding is the 5 th gear is higher for a V8.
The Ashcroft transmission site will probably have the info you need.

Post #676513 6th Jan 2018 11:40pm
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Mash



Member Since: 09 Feb 2015
Location: Guernsey
Posts: 1668

Guernsey 1998 Defender 90 300 Tdi HT Nato Green

Bell housing and input shaft are different. Ashcroft did have some stubby r380s for sale a while ago. 90 wolf - Jasmin http://www.defender2.net/forum/topic39408.html
90 V8 - Maggie http://www.defender2.net/forum/topic42564.html
110 TD5 - Buggsy http://www.defender2.net/forum/topic59029.html
52HG25 lightweight https://www.defender2.net/forum/topic72342.html
D3 Hse - Fiona
Capri 2l S - Anna

Think I might have a problem............

Post #676517 6th Jan 2018 11:47pm
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Retroanaconda



Member Since: 04 Jan 2012
Location: Scotland
Posts: 1695

Scotland 

Yes you’ll need to have the gearbox input shaft swapped for a V8 one (spigot bush diameter is different) or modified to suit.

Bellhousing bolt pattern means new bellhousing as above.

Your best bet would be to find a Discovery V8 R380 and swap your Defender remote housing over with the adaptor that Ashcrofts now do. Or if having it rebuilt get a Defender selector rail put in instead.

Post #676558 7th Jan 2018 11:32am
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